|
|
|
| The collection method of tritiated water vapor in low temperature environment |
| DING Hongshen, XIA Bing, GE Ting |
| Shandong Nudear and Radiation Safety Monitoring Center, Jinan 250017 China |
|
|
|
|
Abstract Objective To establish a suitable method for collecting tritiated water vapor in air in low-temperature environment (-15℃~5℃), and to provide technical support for monitoring tritiated water vapor in the ambient air surrounding nuclear power plants in the north.Methods Taking 3A molecular sieve as the adsorbent, and using the pump to sample the tritiated water vapor in the ambient air. The performances of sampling rate, efficiency, memory effect were tested and optimized for the better applicability.Results At a flow rate from 1.0 L/min to 3.0 L/min, the sampling efficiency was larger than 99%, and the memory effect was about 3%.Conclusion The method is applicable for collecting tritiated water vapor in low temperature environment in winte.
|
|
Received: 27 January 2018
|
|
|
|
|
|
[1] Lucas L and Unterweger M.Comperhensive review and critical evaluation of the half-life of Tritium[J]. J res-Natlnst Technol, 2000, 105(4):541-550.
[2] 陈前远,龚传德,胡丹,等.核电厂外围辐射环境监测中空气中氚的取样方法初探[J].核电子学与探测技术, 2012, 32(11):1348-1352.
[3] 杨怀元.氚的安全与防护[M].北京:原子能出版社,1997:197-199.
[4] 潘自强.电离辐射环境监测与评价[M].北京:原子能出版社,2007:414-419. |
|
|
|
